Heat stress effects on ribulose-1,5-bisphosphate carboxylase/oxygenase, Rubisco binding protein and Rubisco activase in wheat leaves

Demirevska-Kepova, K.; Hölzer, Regina; Simova‐Stoilova, Lyudmila; Feller, Urs

doi:10.1007/s10535-005-0045-2

Cited by 109 publications

(47 citation statements)

References 25 publications

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“…The stressed chickpea plants showed reduced activities of ribulose 1,5 bisphosphate carboxylase (RUBISCO) and sucrose phosphate synthase (SPS) that is in agreement with the observations on wheat plants subjected to high temperature of 40°C, which was attributed to enzyme inactivation and inhibition of photosynthesis (Demirevska- Kepova et al (2000) plants. Similarly, in the leaves of the heat-stressed (40°C) mulberry plants, a decrease in activity of RUBISCO and SPS was observed (Chaitanya et al 2001).…”

Section: Effects Of Heat Stresssupporting

confidence: 88%

Proline induces heat tolerance in chickpea (Cicer arietinum L.) plants by protecting vital enzymes of carbon and antioxidative metabolism

Kaushal

Gupta

Bhandhari

et al. 2011

Physiol Mol Biol Plants

156

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Chickpea is a heat sensitive crop hence its potential yield is considerably reduced under high temperatures exceeding 35°C. In the present study, we evaluated the efficacy of proline in countering the damage caused by heat stress to growth and to enzymes of carbon and antioxidative metabolism in chickpea. The chickpea seeds were raised without (control) and with proline (10 μM) at temperatures of 30/25°C, 35/30°C, 40/35°C and 45/40°C as day/ night (12 h/12 h) in a growth chamber. The shoot and root length at 40/35°C decreased by 46 and 37 %, respectively over control while at 45/40°C, a decrease of 63 and 47 %, respectively over control was observed. In the plants growing in the presence of 10 μM proline at 40/35°C and 45/40°C, the shoot length showed improvement of 32 and 53 %, respectively over untreated plants, while the root growth was improved by 22 and 26 %, respectively. The stress injury (as membrane damage) increased with elevation of temperatures while cellular respiration, chlorophyll content and relative leaf water content reduced as the temperature increased to 45/40°C. The endogenous proline was elevated to 46 μmol g −1 dw at 40/35°C but declined to 19 μmol g −1 dw in plants growing at 45/40°C that was associated with considerable inhibition of growth at this temperature. The oxidative damage measured as malondialdehyde and hydrogen peroxide content increased manifolds in heat stressed plants coupled with inhibition in the activities of enzymatic (superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase) and levels of non-enzymatic (ascorbic acid, glutathione, proline) antioxidants. The enzymes associated with carbon fixation (RUBISCO), sucrose synthesis (sucrose phosphate synthase) and sucrose hydrolysis (invertase) were strongly inhibited at 45/40°C. The plants growing in the presence of proline accumulated proline up to 63 μmol g −1 dw and showed less injury to membranes, had improved content of chlorophyll and water, especially at 45/40°C. Additionally, the oxidative injury was significantly reduced coupled with elevated levels of enzymatic and non-enzymatic antioxidants. A significant improvement was also noticed in the activities of enzymes of carbon metabolism in proline-treated plants. We report here that proline imparts partial heat tolerance to chickpea's growth by reducing the cellular injury and protection of some vital enzymes related to carbon and oxidative metabolism and exogenous application of proline appears to have a countering effect against elevated high temperatures on chickpea.

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Section: Effects Of Heat Stresssupporting

confidence: 88%

Proline induces heat tolerance in chickpea (Cicer arietinum L.) plants by protecting vital enzymes of carbon and antioxidative metabolism

Kaushal

Gupta

Bhandhari

et al. 2011

Physiol Mol Biol Plants

156

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“…Effect of heat stress was analyzed by Rahman et al [100]. Heat stress has negative impact on growth and development of wheat according to various reports [101][102][103]. Morphological and yield traits were determined by Castro et al, Mohammadi et al, Shah and Paulsen, Viswanathan and Khanna-Chopra, Fokar et al [104][105][106][107][108].…”

Section: Effect Of Heat Stress On Wheatmentioning

confidence: 99%

Impacts of Heat Stress on Wheat: A Critical Review

Iqbal¹,

Raja²,

Yasmeen³

et al. 2017

Adv Crop Sci Tech

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A brief review is given of investigations on stress-induced alterations in the yield of different biochemical contents in wheat. Wheat is major cereal crop for fulfilling the calories demands of growing population. Alterations in the worldwide climate are predicted to have critical sentence for crop production. Abiotic stresses such as heat and drought are major abiotic stresses restraining crop production. Heat stress reduces wheat growth by upsetting various physiological and biochemical processes and the developmental stage of the plant is critical in demonstrating the vulnerability of various species and cultivars subjected to high temperature. Heat stress did not affect the protein content but there is strong correlation between leaf nitrogen content and grain protein content. Induction of HSPs seems to be the universal response and adaptation to temperature stress. The synthesis of HSPs is believed to play significant role either in preventing or minimizing the adverse effects of high temperature both at molecular and cellular levels. Wheat has the tendency to adopt diverse types of responses to temperature stress as well as a heat shock by developing thermo-tolerance for the enhancement of the grain quality and yield.

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“…[15][16][17][18][19][20][21] The rca-1 and rca-2 mutants displayed obviously decrease in the JA-induced expression of two defense-responsive genes plant defensin 1.2 (PDF1.2) and thionin 2.1 (Thi2.1), 5,22,23 suggesting that RCA may also play a role in JA-mediated defense responses. The multi-function of RCA in defense responses indicates that there might be some common elements in these processes, which is worthy to be identified.…”

mentioning

confidence: 99%

New perspective of jasmonate function in leaf senescence

Shan¹,

Li²,

Wen³

et al. 2011

Plant Signaling & Behavior

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and bdgao@public.cs.hn.cn J asmonates (JAs) induce leaf senescence in many plant species. The Arabidopsis F-box protein coronatine insensitive 1 (COI1) is required for various JA-regulated plant responses including plant fertility, defense responses and leaf senescence. However, the molecular basis for COI1-dependent JA-induced leaf senescence remains unknown. In our Plant Physiology paper, we identified a COI1-dependent JA-repressed protein, Rubisco activase (RCA) in Arabidopsis. Further genetic and physiological analyses showed that the COI1-dependent JA repression of RCA correlated with JA-induced leaf senescence, and that loss of RCA led to typical senescence-associated features. Therefore, we suggested that the COI1-dependent JA repression of RCA played an important role in JA-induced leaf senescence. In this addendum, we made a relatively deep discussion on RCA function in JA-induced leaf senescence and JA-mediated defense responses. We also discussed the possible role of JA in plant natural senescence.Jasmonates (JAs), as a plant signal, function in induction of leaf senescence. Exogenous application of JA has been shown to stimulate leaf senescence 1-5 and to control a serious of senescence-related genes expression.6,7 The Arabidopsis F-box protein coronatine insensitive 1 (COI1), 8 as a JA receptor, 9 is essential for JA-induced leaf senescence. Upon JA treatment, the senescence phenotype was observed in the leaves of wild type (WT) but not in the coi1 mutants. ( Fig. 1A and B). The transcript level of RCA was also decreased under JA treatment in a COI1-dependent manner, which preceded the reduction of RCA protein 5 ( Fig. 1A and C). In addition, we found that the levels of RCA transcript and protein were unchanged in the WT leaves treated with synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) (Fig. 1D), confirming that the repressed RCA/RCA expression is rather a specific response to the JA signal than general response to hormone overexposure. We further observed that the COI1-dependent JA-repression of RCA correlated with JA-induced leaf senescence. Upon JA treatment for 5 days, severe senescenceassociated features were induced in the WT leaves compared to that in the coi1-1 and coi1-2 mutants 5 ( Fig. 2A). Simultaneously, the RCA protein level was dramatically reduced in the WT leaves, but not in the coi1 mutants 5 (Fig. 2B). Furthermore, we isolated the null mutant rca-1 and the leaky mutant rca-2, and found that these mutants showed typical senescence-related symptoms such as yellowing leaf, lower chlorophyll content, increased expression of senescence-induced genes and decreased expression of senescence-reduced genes at different degrees.5 Thus, we suggested that the COI1-dependent JA repression of RCA played an important role in JA-induced leaf senescence.It has been reported that the RCAdeficient plants had a lower CO 2 assimilation rate correlated with their defects in growth and photosynthesis, and that exogenous application of high CO 2 could restore these deficiency. 10,11 It remains to...

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Heat stress effects on ribulose-1,5-bisphosphate carboxylase/oxygenase, Rubisco binding protein and Rubisco activase in wheat leaves

Cited by 109 publications

References 25 publications

Proline induces heat tolerance in chickpea (Cicer arietinum L.) plants by protecting vital enzymes of carbon and antioxidative metabolism

Proline induces heat tolerance in chickpea (Cicer arietinum L.) plants by protecting vital enzymes of carbon and antioxidative metabolism

Impacts of Heat Stress on Wheat: A Critical Review

New perspective of jasmonate function in leaf senescence

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